/*
 *  Copyright 2009 The Apache Software Foundation
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 */
package org.mybatis.generator.codegen.mybatis3.xmlmapper.elements;

import com.mouse.fast_sql.constant.Config;
import com.mouse.fast_sql.util.StringUtil;
import org.mybatis.generator.api.IntrospectedColumn;
import org.mybatis.generator.api.dom.xml.Attribute;
import org.mybatis.generator.api.dom.xml.TextElement;
import org.mybatis.generator.api.dom.xml.XmlElement;
import org.mybatis.generator.codegen.mybatis3.MyBatis3FormattingUtilities;

import java.util.Arrays;
import java.util.List;

/**
 * @author Jeff Butler
 */
public class UpdateByPrimaryKeySelectiveElementGenerator extends
        AbstractXmlElementGenerator {

    public UpdateByPrimaryKeySelectiveElementGenerator() {
        super();
    }

    @Override
    public void addElements(XmlElement parentElement) {
        XmlElement answer = new XmlElement("update"); //$NON-NLS-1$
        String methodName = introspectedTable.getUpdateByPrimaryKeySelectiveStatementId();
        if (Config.model_flag) {
            methodName = "update";
        }
        answer.addAttribute(new Attribute("id", methodName)); //$NON-NLS-1$

        String parameterType;

        if (introspectedTable.getRules().generateRecordWithBLOBsClass()) {
            parameterType = introspectedTable.getRecordWithBLOBsType();
        } else {
            parameterType = introspectedTable.getBaseRecordType();
        }
        if (Config.model_flag) {
            parameterType = StringUtil.importTran(introspectedTable);
        }
        answer.addAttribute(new Attribute("parameterType", //$NON-NLS-1$
                parameterType));

        context.getCommentGenerator().addComment(answer);

        StringBuilder sb = new StringBuilder();

        sb.append("update "); //$NON-NLS-1$
        sb.append(introspectedTable.getFullyQualifiedTableNameAtRuntime());
        answer.addElement(new TextElement(sb.toString()));

        XmlElement dynamicElement = new XmlElement("set"); //$NON-NLS-1$
        answer.addElement(dynamicElement);
        boolean updateTimeFlag = false;
        for (IntrospectedColumn introspectedColumn : introspectedTable
                .getNonPrimaryKeyColumns()) {
            if (Config.sfc_flag) {
                String param = introspectedColumn.getJavaProperty();
                if (param.equals("updateTime")) {
                    updateTimeFlag = true;
                    continue;
                }
                List<String> commonParam = Config.updateInsertCommonParam;
//                if (commonParam.contains(param)) {
//                    continue;
//                }

            }
            XmlElement isNotNullElement = new XmlElement("if"); //$NON-NLS-1$
            sb.setLength(0);
            sb.append(introspectedColumn.getJavaProperty());
            sb.append(" != null"); //$NON-NLS-1$
            isNotNullElement.addAttribute(new Attribute("test", sb.toString())); //$NON-NLS-1$
            dynamicElement.addElement(isNotNullElement);
            sb.setLength(0);
            sb.append(MyBatis3FormattingUtilities
                    .getEscapedColumnName(introspectedColumn));
            sb.append(" = "); //$NON-NLS-1$
            String param = MyBatis3FormattingUtilities
                    .getParameterClause(introspectedColumn);
            if (Config.ignore_jdbcType_flag) {
                param = StringUtil.xmlParam(introspectedColumn);
            }
            sb.append(param);
            sb.append(',');

            isNotNullElement.addElement(new TextElement(sb.toString()));
        }
        if (Config.sfc_flag && updateTimeFlag) {
            dynamicElement.addElement(new TextElement("update_time = now(),"));

        }
        boolean and = false;
        for (IntrospectedColumn introspectedColumn : introspectedTable
                .getPrimaryKeyColumns()) {
            sb.setLength(0);
            if (and) {
                sb.append("  and "); //$NON-NLS-1$
            } else {
                sb.append("where "); //$NON-NLS-1$
                and = true;
                if (Config.logic_delete_flag) {
                    sb.append("status=1 and ");
                }
            }
            sb.append(MyBatis3FormattingUtilities
                    .getEscapedColumnName(introspectedColumn));
            sb.append(" = "); //$NON-NLS-1$
            String param = MyBatis3FormattingUtilities.getParameterClause(introspectedColumn);
            if (Config.ignore_jdbcType_flag) {
                param = StringUtil.xmlParam(introspectedColumn);
            }
            sb.append(param);
            answer.addElement(new TextElement(sb.toString()));
            break;
        }

        if (context.getPlugins()
                .sqlMapUpdateByPrimaryKeySelectiveElementGenerated(answer,
                        introspectedTable)) {
            parentElement.addElement(answer);
        }
    }
}
